Write a note on cytoskeleton ?
Answers
The cytoskeleton is a network of filaments and tubules that extends throughout a cell, through the cytoplasm, which is all of the material within a cell except for the nucleus. It is found in all cells, though the proteins that it is made of vary between organisms. The cytoskeleton supports the cell, gives it shape, organizes and tethers the organelles, and has roles in molecule transport, cell division and cell signaling.
✭ Cytoskeleton is a network of fibres that is made up of proteins (present in cytoplasm). It is found in humans, plants and animals.
The three main components of cytoskeleton are:-
✿ Micro-filaments consist of actin and myosin proteins.
✿ Microtubules consist of tubulin proteins.
✿ Intermediate filaments.
They helps in intracellular transport, formation of mitotic spindle etc.